1. See Figure 5. Remove 3 screws (37) holding block (36) to body (16).
2. Remove 2 screws holding body (16) to cap assembly (1).
3. Remove all parts from body (16) except pin (30) and arm assembly (28). It is not
necessary to remove these parts unless broken or worn. Examine parts for wear or
damage.
4. Remove screw (3). Examine head for excessive wear, and body for smooth seal-
ing surface with O-ring.
5. See Figure 6. Remove tube lines to cap assembly.
6. Remove screws holding cap assembly to pump body.
7. Remove cap assembly (1). Remove plug (4) with attached parts. Remove spring
(11) and spool (6).
8. Do not remove sleeve in body (1). Sleeve is pressed into cap and finished to size.
If sleeve or cap is worn, replace the cap-sleeve assembly (1).
9. Remove cap (19), screw (13) and nut (14). Remove the retainer (7).
1. See Figure 6. Install Avseal plug (9) in cap.
2. Install spool (6) into bore as shown. Install spring (11) over end of spool.
3. Install O-ring (8) on spring retainer (7). Install retainer (7), screw (13), and nut (14)
in plug (4).
4. Install O-ring (15) in bottom of bore as shown. Install O-ring (10) on plug (4).
Install plugs (4) and (12) in body (1). Torque plugs to 90 ft-lb., 122 N m . Install O-ring
(18) in cap.
5. Turn screw (13) in until spring retainer (7) contacts spring (11). Turn an additional
1-1/2 turns and lock in position.
6. Note proper location for control on pump. Install O-rings on interface between cap
and pump control pad. Install cap on pump control pad, guiding the control piston into
the bore.
7. Torque two assembly bolts to 75 ft-lb, 102 N m.
8. See Figure 5. Apply Loctite 242 on threads of screw (3), lubricate the shank,
thread through the cap into the control piston, and torque to 5 ft-lb., 6,8 N m.
9. Install minimum stop screw (24) and turn clockwise to stroke pump to full volume.
Measure height from control cap to top of screw (3). With control piston at full stroke,
dimension must be 0.75 +/- .03 in., 19,2 +/- 0,76 mm. Back out minimum stop screw
(24) till there is no contact with control piston.
10. Press dowel (30) into body (16), through the link (28), to 0.25 in., 6,35 mm below
surface, apply Loctite hydraulic sealant to threads of screws (46) and install over
dowel (30).
11. Press spool (21) into retainer (19). Caution: do not use excessive force. Place
spool / retainer assembly into spool (17) with spring (18) and washer (34). Secure with
retaining ring (33).
12. While sleeve (27) is engaged into dowel on link (28), slide above spool assembly
into bore of body (16), and through sleeve (27). Spool (21) must move freely and easi-
ly at all positions of the link (28).
13. Install proportional valve (41) in block. Torque to 20 ft-lb., 27 N m.
14. Install coil on proportional valve. Torque to 20-25 in. lb., 2,2-2,8 N m max.
15. Assemble all other components into body (16) per figure 5. Torque the plug (12) to
90 ft-lb., 122 N m.
16. While spring retainer is engaging clevis pin (5) under dowel of link (28), slide the
other opening of spring retainer over the top of the screw (3). Attach body assembly
(16) to cap (1) with two screws and torque to 75 ft-lb., 102 N m.
1. Plumb 1200 psi, 83 bar servo supply to control port “X”. Supply 1200 psi, 83 bar
to the electric stroker servo supply port “E”. Note: All pressure references are “above
case pressure” (25 psi, 1,7 bar max.)
2. Thread zero screw (24) so that pump is on stroke.
3. Place a gage in the proportional valve gage port.
4. Start pump.
5. Adjust amperage (approx. 125 mA) to give 50 psi, 3,45 bar reading on the propor-
ELECTRIC STROKER
ELECTRIC STROKER
DISASSEMBLY
ASSEMBLY
TEST AND ADJUSTMENT
12
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Summary of Contents for P05
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